Burn Multiple: What Investors Want to See
Burn multiple is the single number Series B investors use to test whether the capital you have raised is converting into recurring revenue at a rate that justifies more of it. Net burn divided by net new ARR. The discipline of the calculation is exposed in seconds — and most blended numbers mislead in ways the founder does not realise.
The short answer
Burn multiple is calculated as net burn over the period divided by net new ARR added in the same period. Below 1.0 is exceptional and rare at Series B; below 1.5 is the strong-signal band; between 1.5 and 2.0 is acceptable; between 2.0 and 3.0 raises questions about whether efficiency improves with scale; above 3.0 typically means partners pass without a thesis-defying argument. The metric is asymmetric — improvements toward 1.0 are priced quickly, but deteriorations above 2.5 compound the discount on the round.
Key Takeaway: Burn multiple under 1.5 puts you in the conversation. Burn multiple over 2.5 takes you out of it. The five-tenths between those numbers is where most Series B underwriting decisions actually live.
Source: Opagio internal benchmarking and SaaS index medians, 2024-26 (n indicative).
Why most founders get this wrong
The first construction error is using gross new ARR rather than net new ARR in the denominator. Gross new ARR ignores churn and downsell, which means the metric flatters businesses with shrinking cohorts and penalises businesses that are growing logos faster than they are losing them. Net new ARR — gross new ARR minus churned ARR minus contracted downsell — is the convention partners audit against. Founders who present the gross-numerator version often discover the partner has already recalculated to the net version before the second meeting.
The second error is the use of a blended (multi-segment) burn multiple. A scaleup with two product lines, where one is profitable at the unit level and one is investing heavily, will produce a blended burn multiple of around 2.0 — which reads as acceptable. Decomposed by segment, the profitable product line might run at 0.8 (excellent) and the investing line at 5.0 (catastrophic if not changing). Partners want the decomposition because the bridge between the two trajectories is the actual investment thesis.
The third error is presenting the metric on a quarterly snapshot rather than a trailing-twelve-month basis. Quarterly burn multiples bounce around with seasonality, large-deal timing, and one-off spend. The TTM view damps the noise and shows the underlying trajectory. A burn multiple of 1.4 TTM, trending down from 1.8 four quarters ago, reads completely differently from a single quarter of 1.4 with a noisy back-history.
Warning: A blended burn multiple of 2.0 across a "good" segment at 0.8 and an "investing" segment at 5.0 is not the same business as a uniformly executing 2.0. Partners decompose. Founders who do not decompose first lose the framing of the conversation about which segment is the actual investment.
What "net burn" should include
Net burn is cash out minus cash in over the period — the actual cash consumed by the operating business. It includes operating costs (payroll, infrastructure, marketing, premises), excludes financing flows (debt drawdown, equity raises), and treats interest income on cash balances as a deduction from the gross burn. Founders who present "operating loss" as a proxy for burn are presenting a different metric — operating loss includes non-cash items (depreciation, stock-based comp) that do not affect runway.
Founders who hold significant cash balances earning meaningful interest can usually make a defensible case for netting that interest off, but should disclose the gross figure as well. Aggressive netting — for example, treating unbilled but contracted future revenue as cash-equivalent — does not survive the diligence quality-of-earnings review.
What "good" looks like in 2025-26
The Series B burn multiple bar has moved down materially since the 2021-22 cycle. Where 2.5 was the upper acceptable band in 2022, the 2025-26 cycle has compressed that ceiling to approximately 2.0. The drivers are structural — capital repricing at the late stage, public-market multiple compression, and the shift in LP expectations toward stronger underwriting discipline. The bar is unlikely to move back up.
The bands and what they signal
| Burn multiple | Signal to Series B partner | What partners typically do |
|---|---|---|
| < 1.0 | Exceptional capital efficiency | Move quickly; price at premium to comp set |
| 1.0-1.5 | Strong; sustainable | Active engagement; price within sector medians |
| 1.5-2.0 | Acceptable; narrative carries | Engage if growth and other metrics support; price at lower-quartile |
| 2.0-2.5 | Underwhelming; serious questions | Engagement contingent on a credible improvement trajectory |
| 2.5-3.0 | Concerning; high pass rate | Most pass; some engage on specific thesis-defying argument |
| > 3.0 | Unsustainable at scale | Typically pass; engagement only on bridge-style structures |
The trajectory partners watch
A burn multiple of 1.7 trending down from 2.4 over four quarters often gets engagement that a static 1.7 does not, because the trajectory implies that by the time capital is deployed, the business will be in the strong-signal band. Conversely, a burn multiple of 1.4 drifting up from 0.9 over four quarters often gets a pass that a static 1.4 would not, because the trajectory implies that by deployment the business may be in the underwhelming band. Direction is information.
Trajectory also reveals operating-leverage dynamics that the point-in-time number obscures. Burn multiple improving as ARR scales is the textbook signal of an operating model that is finding its leverage; burn multiple worsening as ARR scales is the signal of an operating model that requires more capital per pound of new revenue at every stage. The first is a thesis partners underwrite at premium; the second is a thesis partners underwrite only with structural conditions.
How to apply it to your round
Burn multiple is one of the easiest metrics for the partner to audit and one of the hardest for the founder to manipulate. The presentation discipline is what determines whether it works for or against the round.
Use net new ARR in the denominator. Always. Gross new ARR with a separate churn line is fine as a supplementary view; the headline metric must be the net version partners will audit against.
Decompose by segment. If the business has multiple product lines, regions, or customer segments with materially different burn profiles, present the decomposition before the partner asks. The segment-level numbers usually tell a stronger story about the investment thesis than the blended one does.
Present TTM, not quarterly. Trailing-twelve-months damps the noise and shows the underlying trajectory. Supplement with quarterly chart for full transparency, but the headline number should be TTM.
Connect the metric to the operating leverage. Series B partners want to see the burn multiple improving as the business scales — that is the test of operating leverage. If the metric is flat or deteriorating with scale, the thesis has to explain why and when that reverses. If it is improving with scale, the thesis writes itself.
1. Calculate net burn cleanly
Operating cash out minus cash in. Exclude financing. Net interest income off the gross. Disclose every adjustment line. The number should reconcile to the cash-flow statement to the penny.
2. Calculate net new ARR cleanly
Gross new ARR minus churned ARR minus contracted downsell. End-period ARR minus start-period ARR is the cross-check. Discrepancies between the two reconciliations expose data-integrity issues that partners catch quickly.
3. Decompose by segment if material
If two segments have burn multiples differing by >0.5, present them separately. The blended number hides the actual investment story; the decomposed numbers reveal it.
4. Present TTM with trajectory
Trailing-twelve-month burn multiple as the headline. Eight-quarter chart underneath, with annotated inflection points (price increase, sales motion change, product release that improved retention).
5. Connect to the operating-leverage thesis
Articulate why the metric will improve (or has been improving) as the business scales. Operating leverage is the underlying intangible asset; the burn multiple is the observable readout of it.
The Bottom Line
Burn multiple is the cleanest number Series B partners use to read capital efficiency, and the most exposed to construction discipline. Net new ARR not gross. Segment-level decomposition. TTM not quarterly. Trajectory with inflection points. Founders who present the metric this way bring the partner to the underlying operating-leverage thesis; founders who do not get re-presented at the partner's committee in the unflattering version.
Related reading
Burn multiple is the capital-efficiency anchor among the five Series B headline metrics. For the broader Series B bar: the Series B efficiency bar in 2025. For the growth-plus-margin combined metric: Rule of 40 at Series B. For the sales-efficiency leading indicator: the magic number. For the expansion side: from 108% to 128% NRR. For when burn multiple has compressed too much to support the next priced round: the runway math that determines your bridge size. For how partners price burn multiple alongside the asset base: why 70% of your valuation is intangible.
Read your burn multiple the way the partner will
Eight minutes. Twelve drivers. The starting view of how your capital efficiency reads against today's Series B underwriting bar — and which underlying drivers compound the number toward 1.0.